I design and build production-grade security systems for companies that need to secure cloud infrastructure, pass audits, and operate in regulated environments.
Most teams don’t have a security tool problem.
They have an architecture, integration, and execution problem.
That’s where I come in.
What I Do
I help startups and enterprise teams move from:
❌ fragmented tools and partial controls
❌ audit delays and failing security reviews
❌ reactive fixes and security debt
→ to
✅ engineered, scalable security architecture
✅ audit-ready, continuously compliant environments
✅ automated, integrated security operations
Core Expertise
Cloud Security & Cryptography
• Multi-cloud security architecture (AWS, Azure, GCP)
• TLS PKI systems with automated certificate lifecycle (IaC + CI/CD)
• Encryption architecture (CMEK, KMS, data masking, data protection)
• Cryptographic hardening aligned with FIPS and modern standards
• DNS security, network isolation, and zero-trust patterns
Identity & Access Management
• SSO (SAML, OIDC), enterprise identity federation
• RBAC and least-privilege system design at scale
• SCIM provisioning and identity lifecycle automation
• Integration with enterprise IdPs (PingFederate, Azure AD, Okta)
• Cross-account and multi-environment access control
Compliance & Audit Readiness
• SOC 2, ISO 27001, PCI DSS, HIPAA, FedRAMP-aligned environments
• End-to-end delivery: gap assessment → implementation → audit support
• Control design, remediation, and evidence automation (Vanta, Drata, custom pipelines)
• Continuous compliance monitoring vs point-in-time audits
• Closing audit findings fast (not just identifying them)
Security Engineering & Incident Response
• CI/CD security (SAST, DAST, IaC scanning, secret management)
• Vulnerability management with automated remediation workflows
• Cloud misconfiguration detection (CIS benchmarks, runtime analysis)
• Secure system design across infrastructure and application layers
• Incident response, forensics support, and system hardening
AI-Driven Security
I don’t just integrate tools — I design security platforms.
I have built and architected multi-agent AI-driven cybersecurity systems combining:
• Cloud security analysis (AWS integrations, IAM analysis, misconfiguration detection)
• Offensive security (recon, exploitation, privilege escalation simulation)
• Vulnerability management (SAST, DAST, fuzzing, CI/CD integration)
• SOC automation (SIEM/SOAR integrations, alert enrichment, playbooks)
• Forensics and incident investigation workflows
• Compliance reporting mapped to frameworks (SOC 2, ISO 27001, PCI, HIPAA)
Key capabilities:
• Multi-agent orchestration and communication
• Automated remediation workflows
• MITRE ATT&CK mapping and executive reporting
• API-driven integrations across security tooling ecosystem
• Role-based access for security, DevOps, and compliance teams
This enables:
→ Continuous security instead of periodic assessments
→ 80% reduction in manual security effort
→ Faster audit readiness and real-time visibility
How I Work
• Engineering-first — I build and implement, not just advise
• Work directly in production systems (cloud, identity, pipelines)
• Design for real audit constraints, not theoretical compliance
• Fast execution, clear communication, and ownership
Typical Clients
• SaaS companies preparing for SOC 2 / ISO 27001 / HIPAA
• Cloud-native platforms handling sensitive or regulated data
• Startups entering enterprise sales with security blockers
• Organizations with fragmented security tools that don’t work together
Important
I’m not a fit for checklist-based security or surface-level audits.
If you need:
• real security architecture
• working implementations
• systems that pass audits and hold up in production
- we’ll work well together.
Artificial Intelligence
Cybersecurity Tool
NIST Cybersecurity Framework
FedRAMP
PCI DSS
Cryptography
Information Security Threat Mitigation
Software
Linux
macOS
Security Engineering
Cloud Security
Metasploit
Software Architecture
Software Architecture & Design
Pankaj R.
Chandigarh, India
$20/hr
4.9
127 jobs
Is your digital infrastructure secure against today's sophisticated threats?
I specialize in identifying and mitigating security vulnerabilities before they can be exploited. With a focus on real-world penetration testing and comprehensive malware cleanup, I ensure your systems are robust and resilient.
🛠️ Services I Provide:
Web & API Penetration Testing: Combining manual and automated techniques to uncover vulnerabilities.
WordPress Security & Malware Removal: Protecting your site from threats and ensuring smooth operation.
Network & Server Vulnerability Scanning: Utilizing tools like OpenVAS and Wireshark for thorough assessments.
Compliance-Oriented Security Assessments: Ensuring adherence to standards such as PCI-DSS and ISO 27001.
Email Setup & Security Hardening: Securing communications with platforms like Gmail, Hostinger, and SendGrid.
📈 Highlights:
4+ Years Experience | CEH Certified
20+ Projects Delivered with 5-Star Ratings
Expertise in OWASP Top 10, CVSS, and MITRE ATT&CK
Post-audit Guidance and Remediation Support
100% Confidentiality | NDA-Friendly
I am committed to delivering high-quality security solutions tailored to your needs. Let's work together to fortify your digital presence.
Information Security
Security Assessment & Testing
Penetration Testing
Malware Removal
Ethical Hacking
Compliance
Web App Penetration Testing
Cloud Security
WordPress Security
Cloudflare
DNS
Google Workspace
Firewall
Technical Support
Linux System Administration
Windows Administration
Email Deliverability
Foysal H.
Dhaka, Bangladesh
$29/hr
5.0
51 jobs
I help startups, SaaS companies, fintech organizations, healthcare providers, and enterprises identify and eliminate security vulnerabilities before they become data breaches.
With 10+ years of offensive security experience and more than 200 successful penetration testing engagements, I provide manual, risk-focused security assessments that uncover vulnerabilities automated scanners often miss.
My assessments follow industry-recognized methodologies, including OWASP Testing Guide, OWASP ASVS, OWASP MASVS, PTES, NIST SP 800-115, and MITRE ATT&CK, delivering actionable findings that improve your security posture and support compliance initiatives.
Core Expertise
• Web Application Penetration Testing (OWASP Top 10)
• API Security Testing (REST, GraphQL, SOAP)
• Mobile Application Security (Android & iOS)
• Network Penetration Testing (Internal & External)
• Active Directory Security Assessments
• Cloud Security Reviews (AWS, Azure & Google Cloud)
• Authentication & Authorization Testing
• Business Logic Vulnerability Assessment
• LLM/AI Application Security Assessment
• Red Team & Adversary Simulation
• Secure Configuration Reviews
Industries Served
• Financial Services & FinTech
• Healthcare
• SaaS Platforms
• E-commerce
• Government
• Telecommunications
Deliverables
Every engagement includes:
✔ Executive Summary for management
✔ Detailed technical report
✔ CVSS-based risk ratings
✔ Step-by-step Proof of Concept
✔ Remediation guidance
✔ Security consultation
✔ Complimentary revalidation after remediation
Compliance Support
My assessments help organizations prepare for or strengthen compliance with:
• ISO 27001
• SOC 2
• PCI DSS
• HIPAA
• OWASP
Certifications
OSCP+ •OSCP• CREST • LPT Master • CRTP • C|PENT • CEH • ISO 27001 Lead Auditor and Lead Implementor
I believe penetration testing should provide clear business value—not just vulnerability lists. Every assessment is tailored to your environment, your threat model, and your compliance requirements, with practical recommendations your team can act on immediately.
If you're planning a new product launch, preparing for an audit, or simply want confidence in your security posture, let's discuss your scope. I'll provide a clear testing plan, timeline, and deliverables before the engagement begins.
Ethical Hacking
Cryptography
Penetration Testing
Network Penetration Testing
Web App Penetration Testing
Cybersecurity Tool
Kali Linux
Vulnerability Assessment
Information Security
Governance, Risk Management & Compliance
AI Governance
OWASP
Security Testing
ISO 27001
Red Team Assessment
AI Security
Application Security
Security Operation Center
Digital Forensics
Kunal N.
Pune, India
$20/hr
5.0
4 jobs
I help SaaS companies, and enterprises identify critical security vulnerabilities before they become costly breaches, compliance issues, or business disruptions.
As an Application Security Consultant and Penetration Tester, I specialize in uncovering real-world security weaknesses across web applications, APIs, network infrastructure, cloud environments, and modern technology platforms. My goal is not only to identify vulnerabilities but also to help organizations understand their security risks, prioritize remediation efforts, and strengthen their overall security posture.
I have worked on security assessments involving enterprise applications, banking platforms, healthcare systems, cloud infrastructures, and business-critical applications. My experience includes identifying authentication flaws, access control weaknesses, business logic vulnerabilities, network misconfigurations, cloud security gaps, API security issues, and attack paths that automated scanners frequently miss.
Core Security Services
• Web Application Penetration Testing (OWASP Top 10 & Business Logic Testing)
• API Security Testing (REST & GraphQL)
• Network & Infrastructure Security Testing
• Cloud Security Assessments (AWS)
• Red Team Operations & Adversary Simulation
• AI / LLM Security Testing
• Vulnerability Assessment & Risk Analysis
• Security Architecture Review
• Email Security Implementation (SPF, DKIM & DMARC)
What You Can Expect
• Comprehensive Manual Security Testing
• Detailed Vulnerability Reports
• Proof-of-Concept Validation
• Risk-Based Prioritization
• Clear Remediation Guidance
• Remediation Validation & Retesting
• Executive and Technical Reporting
Tools & Technologies
• Burp Suite Professional
• Nmap
• Metasploit Framework
• Nessus
• OWASP ZAP
• Wireshark
• SQLMap
• AWS Security Tools
• Kali Linux
Long-Term Security Partnership
Many organizations engage me beyond a single penetration test. I work with clients on recurring security assessments, monthly security reviews, remediation verification, secure development guidance, and continuous security improvement initiatives.
Whether you need a one-time security assessment or a long-term security partner, I focus on delivering actionable security insights that help protect your applications, infrastructure, customers, and reputation.
If you are looking for a security professional who can think like an attacker and provide practical, business-focused security recommendations, I would be happy to discuss your project.
Penetration Testing
Web Application Security
Vulnerability Assessment
Ethical Hacking
OWASP
API Testing
Network Penetration Testing
Metasploit
Cloud Security
Cybersecurity Tool
Security Testing
Network Security
Application Security
Red Team Assessment
Information Security
Youssef E.
Kenitra, Morocco
$25/hr
5.0
28 jobs
I find the vulnerabilities in your web apps, APIs, and networks before attackers do, then hand your team a clear, reproducible penetration testing report they can act on.
GXPN and GCIH certified. Top Rated on Upwork with 100% Job Success across web application, API, and network security engagements.
No scanner dump and no jargon wall. Every finding comes with a severity rating (CVSS), working proof of concept, and a concrete fix your developers can ship.
What I test:
- Web application penetration testing (OWASP Top 10, PTES, NIST)
- API security testing (REST, GraphQL, auth/OAuth, IDOR, broken access control)
- SaaS and multi-tenant assessments (Supabase / Firebase data-isolation testing)
- Network and external perimeter penetration testing
- Source code / secure code review
How I work: authorized testing only, on systems you own or have permission to test. Everything is documented over Upwork so you get a written record of every finding, not a verbal hand-wave. I retest after you patch to confirm the holes are actually closed.
Credentials: GXPN (GIAC Advanced Penetration Tester & Exploit Researcher), GCIH (GIAC Certified Incident Handler), SANS CTF winner, and an active national/international CTF competitor (web, reverse, crypto, forensics).
I also handle WordPress malware removal and incident response. See my Project Catalog for a fixed-price option.
Penetration Testing
Web Application Security
WordPress
Malware Removal
Website Security
Vulnerability Assessment
Network Penetration Testing
OWASP
Information Security
API
Viktor S.
Funchal, Portugal
$59/hr
5.0
33 jobs
I'm Penetration Tester & Cybersecurity Consultant with 8 Years of Experience. I have been recognized as a Top Rated Plus freelancer on this platform🥇Take a look at my full profile to discover how I've helped clients secure their products and meet compliance goals.
If you're looking to identify vulnerabilities before attackers do, strengthen your security posture, or meet compliance requirements, you're in the right place.
Here's how I help businesses stay secure:
🛡️ Penetration Testing. End-to-end security testing for Web applications, APIs, Mobile apps, and Infrastructure. You'll receive a comprehensive report with not just a list of findings, but clear remediation guidance your team can actually use.
🛡️ Cloud Security & Compliance Readiness. I review and harden your cloud infrastructure to help you confidently meet industry standards including ISO 27001, SOC 2, PCI DSS, HIPAA, and more, without the guesswork.
🛡️ Microsoft 365 / Google Workspace Security. A holistic assessment and hardening of your Microsoft 365 or Google Workspace environment, covering identity, access controls, email security, and data sharing settings, so your team can collaborate confidently without exposing common misconfigurations that put your data at risk.
Penetration Testing
Cloud Security
Cybersecurity Management
Website Security
Network Security
Application Security
Information Security
Vulnerability Assessment
Ethical Hacking
Security Assessment & Testing
Network Penetration Testing
Software Testing
Web App Penetration Testing
Static Testing
API Testing
Mobile App Testing
Beta Testing
Alpha Testing
Test Results & Analysis
Security Analysis
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